Sash-cord guide.



No. 669,578. Patented Mar. I2, l90l. Y W. 8. FOX.

' SASH CORD GUIDE.

- (Application filed June 20, 1896.) No Model.)

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UNITED STATES FFICEo A WILLIAM FOX, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO THE FOX MACHINE COMPANY, OF SAME PLACE.

SASH-CORD GUIDE.

SPEGIIEIGATION formingpart of Letters Patent No. 669,578 dated March 12, 1901.

pp qat fi e June 0,1898. Serial No. 683,957. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM R. FOX, a citizen of the United States, residing at Grand Rapids,Kentcounty,Michigan,haveinvented certain newand usefullmprovements in Sash- Cord Guides, of which the following is a specification.

My invention relates to improvements in sash-cord pulleys and shells,commonly'called sash cord guides, constructed of sheet m etal.

The object of the invention is to provide a construction which may be produced at an extremely low cost by stam ping from sheet metal and in which allnecessity of riveting the parts i together may be dispensed with.

The invention is.illustrated in the accompanying drawings, in which Figure 1 is a side elevation. Fig. 2 is an end view, and Fig. 3 is adetail sectional view.

I Fig. 4. is an end elevation, and Fig. fiadetail View.

The shell or casing shown in Fig. 1 consists of two portions or halves B B, which are precisely alike in shape and are struck from a sui table sheet-metal blank. Each half or section is preferably provided approximately centrally thereof with a circular depression or concavity, as shown at I), having an angular hole to receive the end of the axle O, and is also provided with parallel corrugations b,

extending from the rear to near the face of the shell for the purpose of strengthening and bracing the shell and also filling the augerholes Where the sides of the mortise are not cut plain. The sides are curved inwardly at top and bottom until incontact with each other, at which point they are provided with ment of the side sections while they are being handled, I connect them at top and bottom by turning over one or more of the teeth 6 of one section into a spate formed by omitting the corresponding tooth of the opposing section. I prefer to bend over several of the teeth in this manner, as shown more clearly in Fig. 3, and the fastening is rendered more secure by turning the teeth alternately first from one section and then from the other. The front edges of the sections are preferably turned over to form flanges to provide a bearing against the face of the wood into which the shell is driven, and these flanges extend entirely around the face of the shell and abut against each other at D. The abutting edges are slightly recessed, as shown at D, so that an opening is formed at top and bottom of the shell for the insertion of a nail to hold the shell in the wood. Just in rear of each flange is an interior vertical rib d, formed by the metal being struck inwardly into close proximity to the pulley, whereby the latter is guided and the sash-cord prevented from jumping from the pulley and getting between it and the walls of the shell. The channel or depression also adds strength and rigidity to the shell.

Having thus described my invention, what I claim is 1. A shell of a sash-cord guide, consisting of duplicate sides having on the inwardly turned ends, parallel flanges provided with serrated edges, and with one or more of the teeth of said edges turned to interlock, substantially as described.

2. A shell for a sash-cord guide comprising duplicate sides having inwardly-turned abutting upper and lower ends, and outwardlyturned front edges forming a face-flange, said sides having plain-bottomed channels or depressions adjoining the face-flanges and forming interior ribs, parallel corrugations extending from the rear toward the front and terminating in said depressions and means for holding said sections together, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM R. FOX.

Witnesses:

GEORGE S. MILLER, MARY GOFFIN. 

